ladybird/Libraries/LibWeb/HTML/CustomElements/CustomElementRegistry.idl

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#import <DOM/Node.idl>
// https://html.spec.whatwg.org/#customelementregistry
[Exposed=Window]
interface CustomElementRegistry {
[CEReactions] undefined define(DOMString name, CustomElementConstructor constructor, optional ElementDefinitionOptions options = {});
(CustomElementConstructor or undefined) get(DOMString name);
DOMString? getName(CustomElementConstructor constructor);
Promise<CustomElementConstructor> whenDefined(DOMString name);
[CEReactions] undefined upgrade(Node root);
};
callback CustomElementConstructor = HTMLElement ();
dictionary ElementDefinitionOptions {
DOMString extends;
};